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Discussion Starter · #1 ·
Just picked up a boat with a Yamaha C60 outboard on it. Standard 3 cyl, 849 cc, 218lbs.

Yamaha also makes a 70 which is identical to this motor except the 70 has oil injection.

Naturally I'd like to look into converting this motor to a 70 if it's something simple and relatively inexpensive.

My question is, have those of you that have done a similiar conversion had any issues down the road that made you wish you hadn't done it?

-T
 

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Carb and intake assemblies are different

http://www.yamaha-motor.com/outboard/parts/home.aspx
 

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Discussion Starter · #3 ·
Carb and intake assemblies are different

http://www.yamaha-motor.com/outboard/parts/home.aspx
Looks like they have a larger carb and intake, yes. Also you gotta watch as they have a "precision-blend" version of the 70 as well.

I would think it can be done if I found the parts (parts for these motors should be readily available on the market), but I'm also wondering if anyone had any regrets once they changed over.
 

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I love converting the small portable outboard motors but for C60hp yami 2-stroke....I just leave the way it is.

What's 10 more hp gotta do for the boat? I will invest a better propeller or else.

If 60 - 90hp then I will do it.

My 2 cents.

Good luck :)
 
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